Fuel-mixer for explosive-engines.



UNITED STATE STERLING T. PLAYFORD, OF ELGIN, ILLINOIS.

FUEL-MIXER FOR EXPLOSIVE-ENGNES.

Specification of Letters Iatent.

Patented Feb. 3, 1914.

Application led May 26, 1913. Serial No. 770,028.

To all whomy it muy concern` Bc it known that 1, STERLING T. PLAY- rono, a citizen of the United States, residing at Elgin, in the county of Kane and State of Illinois, have invented a new and useful Fuel-Mixer for Explosive-Engines, of which the following is a specification.

The present invention appertains to fuel mixers for internal combustion engines, and aims primarily to provide a novel and. improved device of that character adapted for interposition between the carbureter and 1ntake manifold and operable to efiiciently mix the gases proceeding from the carbureter to the-intake manifold, as well as breaking up any drops or particles of fuel and arresting any foreign or extraneous particles which may yhave passed through the carbureter.

As a more specific object, the present iuvcnlion aims to provide a device of the nature indicated wherein the gases will be constrained to pass around a sharp or` knife edge, thereby chopping or breaking up the drops of fuel which may have been carried from the carbureter with the gases, and to also arrest foreign particles that may have passed through the carburetor.

1t is also within the scope of the invention to provide an extremely simple, compact and inexpensive device of the character specified. which shall be serviceable, convenient .and efficient in its use.

lVth the foregoing and other objectsl'in kview which will appear as the description proceeds, the invention resides in the conibination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the recise embodiment of the invention herein disclosed, can be made within the scope of whatis claimed, without departing from the spirit of the invention.

The invention has been illustrated in its preferred embodiments/*in the accompanymg drawing, wherein similar reference characters have been employed to denote corresponding parts, and wherein:-

Figure 1 is a fragmental perspectiver of one half of the device, the two halves being symmetrical. Fig. 2 isa bottom view of the device with the bottom removed. Fig. 3 is a view similar to Fig. 1 of a modification. Fig. 4 is a sectional view taken en the line 4--4 of Fig. 3. Fig. 5 is a view similar tc Figs. l and 3 of a second variation. Fig. FS

is a sectional view taken on the line 6-6 of: Fig. 5.

In carrying out the invention, reference being had in detail to Figs. l and 2, there is provided a mixing chamber l, which, as illustrated, is cylindrical and relatively shallow in order that it ma' be readily clamped between the carbiireter and inlet branch of the intake manifold of an internal Combustion engine. The mixing chamber embodies the rim havin the integral top 3 and the bottom 4 engaged to the rim 2, the edge of the rim being preferably provided with a rabbetf into which the bottom 4 is threaded.

The mixing chamber 1 is provided with eccentric outlet and inlet ports or openings 6 and 7 in its top and bottom respectively', and the rim 2 is provided with an internal annular' groove 8 a proximately midway between the top and bottom. The ports `6 and 7 are adapted to register' with the inlet branch of the intake manifoldand the outlet of the carburetor, respectively, in order that the gases proceeding from the carbureter may pass through themixing chamber to the intake manifold.

A battle plate 9 is disposed within the mixingchamber 1 between the ports 6 and 7 this batiie plate having one edge curved to conform to the curvature of theV rim 2, and the said edge being engaged in the groove 8 to maintain the batlie plate in position. The. other or free-'edge of the baffle plate is curved so as to provide a crescent-shaped opening 1 0 between it and the respective side of the rim 2. The free edgeV of the battle plate 9 is deflected or bent ldownr wardly slightly and sharpened, "11, t

provide a depending knife edge over whes 3'5 the gases are constrained to pass.

joining the port 7 and below the baiiie plate 9, the said inlet or aperture admitting air, 100

manifold, bolt holes 13 are provided in the top' and bottom of thecase and in the baille 11.9

The rim 2 of the mixing chamber is pref-K l erably provided with an air inlet v12 ad- .f

plate 9 through which the bolts may be passed which connect the said flanges. It will be evident that the mixing chamber may be readily interposed between the carbureter and the intake manifold, no detailed description or illustration thereof being deemed necessary. Y

In operation, the gases proceedingfrom the carbureter and passing'through the mixing chamber will be constrained to follow a tortuous path from the port 7 over the knife edge ll and thence to the port 6, in order that the gases will pass in a relatively wide path over the said knife edge to chop or break up the stray drops of fuel which may have been carried from the carbureter by the gases. In this manner, the knife edge of the baie plate will break up any stray drops of fuel, and will further arrest any foreign particles which may have been carried through the carbureter. The baille plate also has the function of mixing the carbureted gas, the device, as a whole, operating to thoroughly mix the gases so as not only to form a-perfect gas for combustion within the cylinders. but to save fuel and increase the power. The drops of fuel being broken up will enrich the gas, so as not only to save fuel and increase power, but to eliminate the deposit of carbon on the valvesI and within the cylinders, as is customary due to the presence of drops of fuel in the combustible gas. Itis to be understood that the present device may beem loyed in connection with any particular fue ,such as gasolene, kerosene, alcohol and the like, and may be employed in connection with various internal combustion engines, such as automobile, marineJ and the like.

When the air inlet valve is employed, it will be observed that an additional supply 4of air will be admitted, due to thel suction created within the cylinders, in order that this additional supply of air will be thor-y oughly admixed with the carbureted air to form a more perfect combustible gas.

In lthe form illustrated in Figs. 3 and 4, the lower end of the inlet branch of the manifold M is provided with an enlarged portion l vforming a mixing chamber. A coupling member 4 is threaded into the lower portion of the enlargement 1' for alf tachment to the carbureter, the couplino" being provided with a flange having lt openings 13 for the attachment of the coupling to the carbureter. The enlargement 1 is provided with a plurality of internal ennu'lar grooves 8' with which the semi-circular battle plates 9 are engaged. The alternate baille plates 9 are reversed or staggered in order that their free edges will lie in a cAmmon plane cutting the axis of the enlargement 1, the free edges 141 being downturned and sharpened. It will be evident that the baffle plates may be readily inserted and snapped into the respective grooves 8', and may be turned to their proper positions with respect to each other. lhe enlargement l may also be provided with the air inlet 12 in one side below the lowermost batlle plate 9', if desired.

The operation of the modification illustrated in Figs. 3 and 4f is similar to the form illustrated in Figs. 1 and 2, the gases passing in a tortuous path over the knife edges ll to carry out the functions desired. The latter forni is desirable in some instances, in that it permits the present device to be incorporated in the intake manifold, although the first mentioned form is desirable in other instances, in that it may be interposed between thc carburetor and intake manifold of engines now in use.

In the variation illustrated in Figs. 5 and 6, the lower end of the intake manifold M is enlarged to provide the mixing chamber 1"I similar to the mixing chamber l above described. The mixing chamber l embodies the rim 2 having the top 3". The bottoni 4 is threaded into the rim 2 and has attached thereto a pipe 7 adafted to be connected to the carburetor. The rim 2 is provided with the internal annular groove 8". The baille plate 9 is circular, but of slightly smaller diameter than the rim 2, the baille plate having a plurality of projections 9 engaging within the groove 8 to maintain the baille plate 9 in position. The said battle plate 9 is disposed concentrically within the mixing chamber and provides a plurality of arcuate openings l0 adjoining the rim 2 and between the projections 9B. The free edges 11" of the baille plate 9 are downturned and sharpened to carry out the desirable functions above pointed out. The pipe 7 may be provided with an air inlet 12 directly below the bottom 4 and the members 3, 4 and 9 may be provided with the bolt holes 13 for attaching the mixing chamber to the carbureter or other part of the engine. The functions of the variation just described are the same as those of the above described forms, the two forms illustra'rted in 3 and 5 somewhat resembling each oth rl in that `they are each incorporated Wit -zthe intake manifold.

If desired, the mixing chamber and baille plate may be cast integrally with the portion of the carbureter so that it will be understood that the deviqe may be attached to either the intake manifold or the carbureter. It is also possible to construct the device of one casting, so that this may be disposed lbetween the carbureter and intake manifold.

Having thusdescribed the invention, what is claimed as new is 1. A device of the character described embodying a mixing chamber adapted to be loo ai @Uma-L wam 10M engins. zum n.

mixing :Qxzxn of edm-5 in a mriuous path, said m n bm bfm, und sharpened, nud the mimg chnmm' Ming provided wlth :m zur 15 Wimtsses: 1

Humy (L ANMLS,

.,ux: L. PACLSON. 

